The role of immigrants in the earlyl9th Century

Discuss the role of immigrants in the earlyl9th Century market revolution and new market-based society it created? What were their contributions? How were they treated by those who had immigrated here before them? At the same time…discuss how "Nativism" as an ideology and a philosophy evolved in this period as a response to the arrival of these new immigrants. Has anything changed in how some Americans have viewed and treated the newcomers who have come to the United State..: in the 150+ years since the Market Revolution?